Pump-operating means



April 8 1924.

. 1,489,636 B. F. GILSON PUMP OPERATING MEANS Filed AUE. 1'7 1922 2 SheetsSheet 1 anventoz (lite omega April 8 1924.

Y 7 1,489,636 .v F. GILSON PUMP OPERA'FING MEANS Filed Aug. 17. 1922 2 sheets-sheet a I: l lll 2 anvzmtoz Barney 6126012 L 140,00 v I Qbtowaqo Patented Apr. 8, 1924.

UNITED STATES PATENT OF-FlCE.-

BARNEY F. GILSON, 0F ABERDEEN, WASHINGTON.

PUMP-OPERATING MEANS.

Application filed August 17, 1922. Serial N o. 582,425.

Aberdeen, in the county of (Strays Harbor and State of Washington, have invented certain new and useful Improvements in Pump-Operating the following to description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved pump operating device and one object of the invention is to provide a pump operating device having improved means for converting rotary movement of a. rotatable drive into reciprocating movement for-piston rods of a pump. 1

Another object of the inventionis to so construct this pump. operatingmeans that the rotatable drive may beprovided with a pitman rod which extends at an incline from a point out of alinement with the rotary drive to a point in alinement therewith, the last mentioned end portion of the pitman being the fulcrum end of the pitman and carrying a radially extending head so connected with the piston rods of the pump that as the rotary drive rotates, the head will rotate about its pivot with an oscillating or wabbling movement which will cause the piston rods which are connected with this peripheral portion to be recipro cated. I o 7 I Another object of the invention is to so construct this pump operating means that any number of piston rods may bereciprooated, it simply being means about the peripheral portion'of the pitman head for connection with the desired number of piston rods. Another object of the invention is to so construct this pump operating means that it will consist of a comparatively few number of parts which will be stron'g'and'durable and to so mount them that the pitman mav be connected with the rotary drlve for universal movement and the head connect ed with links which extend from the piston rods for universal movement;

7 ,This invention is illustr t din ,thegacg companying drawings'wherein: 1

l Figure'l 1s a top plan view partially in section and showing the imp-roved flpump operating means in use.

, Figure 2 is an enlarged sectional view Means; and I do declare be a full, clear, and exact necessary to provide provided rod 15. The piston rods 13 and 15 are conbuckles and vshowing the pivotal mounting of the pitman head-and connection with the piston rods,

Figure 3 is a transverse. sectional view through the pump looking towards the pitman head and low; compression cylinders.

Thepump which has been shown in Fig 1 is for use in pumping air to a suitable storage tank in which air will be accumulated and placed under a desirable pressure. This pump is provided with a base 1 and adjacent opposite ends of the base 1', there has been provided banks 2 and?)- of cylinders, the oylinders of the bank 2 being high pressure cylinders and the cylinders of the bank 3 being low pressure cylinders. The cylinders "are arranged about a common center as shown in Fig. 3 and each of the cylinders ofithe bank 3 has been provided with a pipe 4 which leads from an outlet controlled by a valve 5 and is connected with a pipe 6. The pipes 6 communicate with amanifold chamthe manifold 7 and pass from the manifold 7 i into the cylinders of the bank 2 through the'inlets controlled by the valves 8. The bank 3 is provided with a head or air chamber 9 into which air passes through inlets controlled'by valves 10. This air will be drawn into the cylinders'through inlets controlled by valves 11, it of course being understood that one valve controlled inlet will be provided for each of-the low pressure cylinders: Each of the lower pressure cylinders will have its piston- 12 provided with a piston rod 13 and each of the high pressure cylinders of the bank 2 will be with a piston '14 having a piston nected by couplings 16 which resemble turntherefore will be, provided with longitudinally extending pockets: .17 in which links 18 will be pivotally mounted vfor swinging movement transversely of the couplings. It'will thus beseen that-when'the couplings are moved, the piston rods will be reciprocated and the piston :01? one of 'the low-pressure cylinders will be moving on Ia power stroke while the piston of the corresponding high pressure cylinderis moving to-draw airinto the cylinderwAs this movement takesplace;:the rain-which -has previously been'drawn into thelo-wzpressure cylinder through the valve-controlled inlet will be forced through the pipes 4 and 6 into the manifold 7. At the same time air will have been drawn into the high pressure cylinder and upon the 5 reverse stroke of the piston rods, the air will be forced out of the high pressure cylinder through an outlet controlledflby avalve .19 into a pipe 20 from which one or more pipes 21 extend to a suitable storage tank.

This pump is .to be operatedfby means of a suitable engine or motor which may be of any suitabletype but will preferably be a steam engine andwill include a rotating shaft 22 upon which a drivewheel ,or disk 23 is slida-bly mounted butsecured by a key 24 so that it will rotate with the shaft 22. This drive wheel or. disk. has its peripheral face engaging a wheel or disk 25 which is rotatablymounted as shownatf26' and .extends 'at right angles .to-the wheel23. This wheel 25fmay be'termed a rotary drive for the piston rodsand Jit is-desired liGiJGQIlVQIt rotary movement "of. this..-wheel 25 into. ,re-

iciprocating' movement for" the. piston ro ds.

Thereforeythere has been providedaT-pitman 27 which has one end portion; connected with the wheel25 out of alinement with the axis of the wheel 25 and'connected with the wheel for universal movement as shown at 25.

This pitman 27 extends at an incline from:

the wheel 25 through an open, space provided in the center of the bank '2 of-fhigh pressure cylinders to a pointapproximately in alinenient with the'axis of rthe' .wheelw-25, :Lllhis pitmanlis provided witha head-"28 which is rigidly mounted upon- :the pitman and; extends radially thereof. Referring to Fig. 3, it will be seen'tha 'tthe head 28 has been shown in theform of as'tar having four rain engagement with the free end portion of I s eta/n ts s8" "re infer heat 28 andthe i oneofithelinks by means ofacap 31 and thereby provides mean conneeting the head 28 with" the jlinks for universal imovem'ent.

It will thus'be'seen th-atwhen in usei'the,

links will have movement transversely of the couplings'and fat the same time will have movementeaaianv of -the head 28; --This head 28 is 'provi ded at its-center with a pocket 32th receive thespherical head 33 i of a fulcrum. post 34. After the'lie'ad33 has beenjp sitiofiafiarhesoeketjsa; the securing fth p d Ia gl movement. ,"as the wheel assesses; the pitman 27 will swing about the fulcrum with e d for 'i' oiiary tank and therefore the disk orwheel 23 has been provided with a hub extension provided with an annular groove 36 into which fits ,:-'t-he head 37 of a shaft-38. This shaft 38 ex- .ten dsinto a cylinder 39 and carries apiston;

40. Anair pipe 41 which leads from the storage tank is provided with branches 42 and 43 which communicate withthe cylinder 3 9 upon opposite sidesof the piston 40. At one end, the" cylinder 'hasbeen provided with an outlet provided With a control valve e4; This valve 441s providedwith a handle 45 by means of which the valve. may be opened and closed and this handle is connected. with an actuating rod 46. This rod .46 will lead to a suitable governor controlled by pressu're in the tank. Ordinarily, this valve .4 4fwill ,be opened and therefore the pressure of :the air passing through the branch 43 willbe greater than the pressure upon' the opposite side and the piston will .be moved to draw the .wheel23 towards the axis of the wheel 25] When the pressure in the storage tank becomes greater than .de-

sired, the automatic governor referred to.

will move the .rod 46 to act upon and-close the valve 44. The pressure uponopposite sides of the piston40 will then be equalized and the wheel 23 will be moved to the position shown .thus cuttingdown the speed of the wheel25j and of course causingvslower op'erationof the pump. It will thus be seen that-this pump has been provided with imi proved Toperating means and has. been provided with a special construction and arrangement of 'pitma-n including arradially extending head soconnected with the cou- 'pling 16-that as the wheel25 rotates, the rotary movement will be transformed :into re- :ciprocating movement of .the piston rods.

Irelaim: I g V i 1. The combination: of a pump including spacedl'cylinder banks having their cylinders in opposed relation an'deach having itscylinders spaced aboutthe circumference. of a xcirc'le, a pivotpostextending fromkthe center of one o'fsaid oylinderbanks toward the otherloank, the other.bank. -having an open central "portion, f pistons .in {said cylinders having piston rodsv extending from. the. inner' :ends'of the cylinders, couplings connecting the piston rods of one bank with the piston rods of the other bank, links pivotally carried by said couplings and extending longitudinally thereof and having swinging movement radially of said pivot post, a disk pivoted at its center to said pivot post for universal rocking movement about the same, stems extending from the periphery of said .disk and terminating in spherical heads connected with the free end portions of said links for universal movement, an operating rod rigid with and extending from the center of said disk and through the bank having the open central portion, and a rotary drive having the outer end of said operating rod eccentrically connected therewith for universal pivotal movement.

2. The combination of a pump including spaced cylinder banks having their cylinders in opposed relation and each having its cylinders spaced about the circumference of a circle, a. pivot post extending from the center of one cylinder bank towards the other bank, pistons in said cylinders having piston rods extending from the inner ends of the cylinders, couplings connecting the piston rods ofthe opposed cylinders, links pivotally carried by said couplings and having swinging movement radially of said pivot post, a disk pivoted at its center to said post for universal rocking movement, stems extending from the periphery of said disk and pivotally connected with the free end portions of said links for universal movement, an operating rod rigid with and extending axially from the center of said disk, and a rotary drive having said operating rod eccentrically connected therewith for universal pivotal movement.

In testimony whereof I have hereunto aflixed my signature.

BARNEY F. GILSON. 

